{"action":"created","issue":{"url":"https://api.github.com/repos/simulkade/FVTool/issues/12","repository_url":"https://api.github.com/repos/simulkade/FVTool","labels_url":"https://api.github.com/repos/simulkade/FVTool/issues/12/labels{/name}","comments_url":"https://api.github.com/repos/simulkade/FVTool/issues/12/comments","events_url":"https://api.github.com/repos/simulkade/FVTool/issues/12/events","html_url":"https://github.com/simulkade/FVTool/issues/12","id":245050323,"number":12,"title":"diffusion equation","user":{"login":"jominkyung","id":30407737,"avatar_url":"https://avatars3.githubusercontent.com/u/30407737?v=4","gravatar_id":"","url":"https://api.github.com/users/jominkyung","html_url":"https://github.com/jominkyung","followers_url":"https://api.github.com/users/jominkyung/followers","following_url":"https://api.github.com/users/jominkyung/following{/other_user}","gists_url":"https://api.github.com/users/jominkyung/gists{/gist_id}","starred_url":"https://api.github.com/users/jominkyung/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jominkyung/subscriptions","organizations_url":"https://api.github.com/users/jominkyung/orgs","repos_url":"https://api.github.com/users/jominkyung/repos","events_url":"https://api.github.com/users/jominkyung/events{/privacy}","received_events_url":"https://api.github.com/users/jominkyung/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-07-24T11:27:31Z","updated_at":"2017-07-24T12:35:52Z","closed_at":null,"body":"Hello! I was desperate to find this tool. \r\n\r\nIt will be very helpful to me. Thank you!\r\n\r\nI have to solve the PDE systems and the thing I want to know is that FVTool can solve this kind of\r\nproblem. (d means gradient and Dc means the diffusion coefficient(constant) of concentration C\r\n                B means the concentration of B)\r\n-> dCdt = d/dx((Dc-C) * heaviside(Dc-C) * dC/dx) + k1 * B * C\r\n\r\nThat is, can FVTool solve not only \"dCdt=d^2U/dx^2\" but also\r\n \"dCdt=d/dx(A(C)*dC/dx)\" ?\r\n* A(C) is a certain function of concentration C.\r\n\r\nPlease share your wisdom with me."},"comment":{"url":"https://api.github.com/repos/simulkade/FVTool/issues/comments/317408963","html_url":"https://github.com/simulkade/FVTool/issues/12#issuecomment-317408963","issue_url":"https://api.github.com/repos/simulkade/FVTool/issues/12","id":317408963,"user":{"login":"simulkade","id":1881542,"avatar_url":"https://avatars0.githubusercontent.com/u/1881542?v=4","gravatar_id":"","url":"https://api.github.com/users/simulkade","html_url":"https://github.com/simulkade","followers_url":"https://api.github.com/users/simulkade/followers","following_url":"https://api.github.com/users/simulkade/following{/other_user}","gists_url":"https://api.github.com/users/simulkade/gists{/gist_id}","starred_url":"https://api.github.com/users/simulkade/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/simulkade/subscriptions","organizations_url":"https://api.github.com/users/simulkade/orgs","repos_url":"https://api.github.com/users/simulkade/repos","events_url":"https://api.github.com/users/simulkade/events{/privacy}","received_events_url":"https://api.github.com/users/simulkade/received_events","type":"User","site_admin":false},"created_at":"2017-07-24T12:35:52Z","updated_at":"2017-07-24T12:35:52Z","body":"Hi @jominkyung \r\n\r\nYes you can solve your nonlinear diffusion equation in FVTool, but you need to iterate. I have written a blog post about it previously:\r\nhttp://fvt.simulkade.com/posts/2015-04-06-solving-nonlinear-pdes-with-fvm.html"}}
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